Vehicle Center of Mass Detection for Concealed Cargo Screening

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Solution Overview

Problem

Current methods for detecting concealed cargo and passengers in vehicles are either time-consuming and not foolproof, such as manual inspections, or expensive and low-throughput, like high-tech systems like VACIS, which impact traffic throughput and are not completely effective.

Innovation Solution

A computer-implemented method and system using weight distribution data and a weight scale system to determine the actual and predicted center of mass of a vehicle, generating a signal if the actual center of mass deviates from the predicted by a predetermined threshold, indicating concealed cargo or passengers, allowing for efficient routing to secondary inspections without significantly impacting traffic.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual inspection is used to detect concealed cargo and passengers, then detection effectiveness is improved, but inspection time increases and traffic throughput decreases

Engineering Contradiction:
Improvedetection effectivenessVSAvoidinspection time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent replaces manual mechanical inspection with an automated center of mass measurement system using weight distribution sensors and computational analysis. The system automatically detects concealed cargo by comparing measured center of mass positions against expected positions based on vehicle loading data, eliminating the need for time-consuming manual searches while maintaining high detection effectiveness.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system enables vehicles to be screened automatically without requiring manual intervention. The weight distribution data is collected and analyzed by the computer system, which autonomously determines whether concealed cargo is present and routes vehicles accordingly, making the inspection process self-service and significantly faster than manual methods.

Inventive Principle:
Principle #25Self-service

2Reliability

If high technology systems like VACIS are used for vehicle screening, then detection capability is improved, but system cost increases and throughput decreases

Engineering Contradiction:
Improvedetection capabilityVSAvoidsystem cost
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent uses relatively simple and inexpensive weight distribution sensors and computing equipment instead of expensive gamma-ray imaging systems like VACIS. The system achieves effective detection using affordable components that measure weight distribution and calculate center of mass positions, making the screening process cost-effective while maintaining good detection capability.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The patent replaces complex high-tech gamma-ray imaging systems with a simpler mechanical/electrical measurement system based on weight distribution sensors and computer analysis. This substitution dramatically reduces system cost and complexity while providing sufficient detection capability for concealed cargo identification.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Measurement precision

If comprehensive manual inspection is performed, then detection accuracy is improved, but traffic throughput is significantly reduced

Engineering Contradiction:
Improvedetection accuracyVSAvoidtraffic throughput
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The system performs rapid center of mass measurements and comparisons that take only seconds per vehicle, allowing most vehicles to be screened quickly and routed through without interruption. Only vehicles with suspected concealed cargo are directed to secondary inspection areas, maintaining high traffic throughput while preserving detection accuracy through automated analysis.

Inventive Principle:
Principle #21Skipping (Rushing through)

Solution Approach 2:

The automated system performs the entire detection process without manual intervention, collecting weight distribution data, calculating center of mass positions, comparing against expected values, and making routing decisions automatically. This self-service capability enables rapid processing of vehicles while maintaining accurate detection, preventing traffic congestion that would result from manual inspections.

Inventive Principle:
Principle #25Self-service

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This approach enables rapid and effective detection of concealed items in vehicles, minimizing traffic disruption while providing a cost-effective solution that is more efficient than traditional methods, with the ability to accurately identify anomalies in vehicle weight distribution.

Implementation Method 1

measuring a center of mass of the vehicle using a weight scale system to obtain an actual center of mass position of the vehicle

Methodology Applied
Scientific EffectWeight distribution measurement: Gravitation

Data Source

PatentUS8364439B2System and method for detection of concealed cargo in a vehicle by center of mass measurement
Publication Date: 2013.01.29 RAYTHEON CO
  • US8364439B2 patent drawing
  • US8364439B2 patent drawing
  • US8364439B2 patent drawing

AI summary

A system and computer-implemented method for detecting concealed cargo and/or concealed passengers in a vehicle includes obtaining weight distribution data for the vehicle; obtaining vehicle loading data; measuring a center of mass of the vehicle to obtain an actual center of mass position of the vehicle; and executing one or more computer program modules configured to determined a predicted center of mass position of the vehicle using the obtained vehicle loading data and the obtained weight distribution data of the vehicle; compare the actual center of mass position of the vehicle with the predicted center of mass position of the vehicle; and provide a signal if the actual center of mass position of the vehicle departs from the predicted center of mass position of the vehicle by at least a predetermined threshold, the signal being representative of concealed cargo and/or concealed passengers in the vehicle.